Tides Today & Tomorrow in Tonki Bay, AK

TIDE TIMES for Thursday, August 20, 2026
The tide is currently rising in Tonki Bay, AK.
Next low tide : 1:38 pm (3.7 ft)
Next high tide : in 3h 33m at 8:40 am (7.3 ft)
Sunset today : 9:40 pm
Sunrise tomorrow : 6:42 am
Moon phase : First Quarter (57% illuminated)
Tide Station Location : Station #9457152
Common Questions About Tides

Tonki Bay, AK Tides - Jan 1924

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:0110.98:548.51:262.02:571.68:563:26Waning Crescent1Tue
2Wed9:0111.510:148.92:332.44:050.68:563:28Waning Crescent2Wed
3Thu9:5712.111:209.43:382.65:04-0.38:553:29Waning Crescent3Thu
4Fri10:5112.74:392.65:56-1.18:553:31New Moon4Fri
5Sat12:159.911:42 AM13.15:362.46:43-1.68:543:32New Moon5Sat
6Sun1:0410.412:3013.36:282.37:27-1.88:533:34New Moon6Sun
7Mon1:4910.71:1613.17:172.18:10-1.78:533:35New Moon7Mon
8Tue2:3210.82:0112.78:042.18:50-1.48:523:37Waxing Crescent8Tue
9Wed3:1510.72:4512.08:502.29:30-0.98:513:39Waxing Crescent9Wed
10Thu3:5610.63:2911.19:382.310:09-0.18:503:40Waxing Crescent10Thu
11Fri4:3710.44:1510.210:282.610:480.78:493:42Waxing Crescent11Fri
12Sat5:2010.15:059.211:232.811:291.58:483:44First Quarter12Sat
13Sun6:0510.06:048.312:282.98:473:46First Quarter13Sun
14Mon6:569.97:257.712:142.31:512.88:463:48First Quarter14Mon
15Tue7:519.99:027.61:093.03:112.48:443:50First Quarter15Tue
16Wed8:4710.210:237.92:133.44:131.98:433:52Waxing Gibbous16Wed
17Thu9:3910.511:208.33:183.65:011.38:423:54Waxing Gibbous17Thu
18Fri10:2510.94:163.65:420.78:403:56Waxing Gibbous18Fri
19Sat12:028.811:08 AM11.35:063.56:170.28:393:58Waxing Gibbous19Sat
20Sun12:389.211:48 AM11.75:493.26:49-0.38:374:01Full Moon20Sun
21Mon1:119.612:2612.06:292.97:21-0.78:354:03Full Moon21Mon
22Tue1:429.91:0412.17:082.67:53-0.98:344:05Full Moon22Tue
23Wed2:1410.11:4112.07:462.38:26-1.08:324:07Full Moon23Wed
24Thu2:4710.32:1911.88:262.19:01-0.88:304:10Waning Gibbous24Thu
25Fri3:2110.53:0111.39:092.09:37-0.48:284:12Waning Gibbous25Fri
26Sat3:5810.63:4610.69:561.910:160.18:274:14Waning Gibbous26Sat
27Sun4:3810.74:389.710:501.910:590.98:254:17Third Quarter27Sun
28Mon5:2410.85:418.911:521.911:491.78:234:19Third Quarter28Mon
29Tue6:1910.87:038.21:081.78:214:21Third Quarter29Tue
30Wed7:2211.08:438.112:492.42:341.38:194:24Third Quarter30Wed
31Thu8:3211.310:128.52:023.03:520.68:174:26Waning Crescent31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9457152)

Common Questions About Tonki Bay, AK Tides

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What time does the tide turn (slack tide) in Tonki Bay, AK today?

Slack tide in Tonki Bay, AK is approximately 11:09 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Tonki Bay, AK?

Tonki Bay, AK is currently in a neap phase. Tonight's moon is 57% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly minimum.

What datum are Tonki Bay, AK tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Tonki Bay, AK?

Tide predictions for Tonki Bay, AK come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Tonki Bay, AK?

Tide data for Tonki Bay, AK is sourced from NOAA Station #9457152. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9457152.

What is the moon phase in Tonki Bay, AK tonight?

Tonight the moon over Tonki Bay, AK is First Quarter (57% illuminated). This places Tonki Bay, AK in a neap tide cycle, so tidal ranges are near their weekly minimum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA